Valve for flush-tanks.



G. BANKER.

VALVE FQR FLUSH TANKS. APPLICATION mio APR.23.!915.

1,1 62.209. Q Patented Nov. 30, 1915.

INVINTOR.

M A. M xuh. e QgLWTTORNYl.

GEORGE BANKER, II'IIZ LSBURGH, PENNSYLVANIA.

vamp; {FLUSH-TANKS.

-. spepification of Letters Patent:

Patented am. so,

Application filed April 23, 19 15. SeriaI No. 23,372.

To all whom it may concern.

Be it known that I, Gnoncn BANKER, a

citizen of the United States, and whose postoliice address is 171% Morningside road, Pittsburgh, Pennsylvania, have invented certain new and useful Improvements in Valves for Flush-Tanks, of which the following is a specification.

This invention relates to new' and useful improvements in valve for flush tanks and the like and more especially that class generally known as ball valves.

The object of the invention resides in the provision of a ball valve having a. flange at the lowerendthereof for engaging the. valve seat thus at ail'times insuring the proper engagement of the same for sealing the tank to which the'device is applied against leak- A further object of the present invention resides in the provision of a valve of the above specified type which will be comparatively simple and inexpensive to manufac-' ture, reliable and eflicient in use, and readily operated. vlVith the above and other objects in view the present invention resides in the novel features ofconstruction, formations, combinations and arrangements of parts to be hereinafter more fully. described, claimed and illustrated in the accompanying drawing, it being understood that various minor changes in the specific detail's'of construe.- tion can-he resorted to within the scope of the appended claim without departing from the spirit or sacrificingany of the advantages of the invention.

In the accompanying drawing forming a part of this application: Figure'l is a side elevation of the invention. Fig. 2is a vertil p said ball valve having a. bottom the lower cal sectional view thereof, and Fig. 3 is an enlarged fragmentary section showing the ball valve and itsseat.

Referring to the accompanying drawing by similar characters of reference throughout the several views, 5' designates enerally a casting'which is adapted to .be threaded into the bottom of.- the flush tank in the usual manner. This casting 5 is pro vided with a supportingfiange 6 adapted to engage theupper side of the tank bottom and a lateral extension 7 cates with the interior of the said casting is and afiords a means for supporting the usual overflow pipe 8. A bracket 9 is adjustably secured to the overflow pipe 8 and has an Inner terminal bearing sleeve 10 in which the valve stem 1]. is slidaloly located. The upper extremity of the Easting 5 is flared outwardly as at 12 and then curved inwardly as at 13 forming a valve seat for en,

gagement with the valve 14: carried by. the lower end of the valve stem 10.

v The valve 14 is globular in formation and comprises an upper semi-spherical section 35 provided with a lower annular locking flange 16, adapted to engage the upper locking flan l7 formed upon the lower section 18 of the valve 14. A curved bottom 19 having a lower concaved surface 20 is provided upon the section 18 and projects beyond the lower end thereof as shown at 21 for engagement with the valve seat 13 to the outer surface to which the same conforms. Obviously as the valve 14 is lowered the' same will at all times be guided into proper engagement with its seat 13 preventing the contents of the flush tank from flowing therefrom through the above described casing 5.

From the foregoing it will be manifest that a valve is provided which will fulfil all of the necessary requirements of such a de" vice.

Having thus fully described my inventionv what I claim as new and desire to protect by Letters Patent is Q In a valve such as described, the Coinbina tion' of'a casting having a flared upper end and an inwardly extending upwardly in clined flange forming a valve, seat, a ball valve movable to and from said valve seat,

edge of which extends below the valve and the lower side of which is concaved conforming to the shape of'the valve seat, and meal for supporting the valve. I

In testimony whereof I affix my signature in the presence of two witnesses.

GEORGE BANKER; Witnesses:

VVBL- M. DUFF, JonN BANKER.

which commnni 

